The Sumter-class attack transport was a class of attack transport built for service with the US Navy in World War II. Like all attack transports, the purpose of the Sumter's was to transport troops and their equipment to foreign shores in order to execute amphibious invasions using an array of smaller assault boats integral to the attack transport itself. Like all the attack transports, the Sumter-class was heavily armed with antiaircraft weaponry to protect itself and its cargo of troops from air attack in the battle zone.